UV Index in Rantau, Indonesia

Last updated: July 2, 2025

Understanding the UV Index in Rantau, Indonesia, is essential for safeguarding your skin and overall health. With a tropical climate that brings high UV exposure, awareness of UV levels plays a crucial role in preventing sunburn and long-term skin damage. From the peak UV Index of 12 around noon, it’s vital for residents and visitors alike to recognize the risks and take precautions during the day. By staying informed about the UV Index, you can enjoy the beautiful Indonesian sun while protecting yourself and your loved ones.

Hourly UV Index in Rantau

The UV Index throughout the day paints a vivid picture of solar intensity. Starting with a mild 1 at 07:00, the index gradually climbs, reaching 2 by 08:00. A noticeable surge occurs around 09:00, where it hits 4, followed by a significant jump to 7 at 10:00. The peak of the day arrives at 12:00, with an impressive 12, reflecting the sun’s most potent rays. The intensity begins to decline after this peak, dropping to 9 at 14:00 and further down to 6 by 15:00. As the evening approaches, the UV Index falls back to 3 at 16:00 and returns to a comfortable 1 by 17:00, concluding the day with a trivial 0 by 19:00. This data underscores the importance of sun safety during peak hours! 🌞

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	9	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Rantau

The UV Index displays extremely high levels of ultraviolet radiation throughout the year, consistently remaining between 14 and 16 from January to April and September to December. The months of January, February, March, and April experience the highest UV indexes, making them crucial high-risk months for sun exposure, with a burn time as short as 10 minutes in these periods. Visitors and residents should take precautionary measures such as wearing protective clothing, using sunscreen, and seeking shade, especially during peak hours, to reduce their risk of skin damage. As the UV Index begins to dip slightly in June and July, it still remains within the extreme category, warranting continued vigilance. Therefore, it is essential for everyone to stay informed and prioritize sun safety all year round.

Monthly Maximum UV Index for Rantau, Indonesia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Rantau. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Rantau, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Rantau UV Index with Other Indonesia Cities

The table above highlights how UV exposure in Rantau compares to other major locations across Indonesia. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Rantau's solar exposure compared to other cities in Indonesia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Surabaya UVI	13	15	14	12	12	10	11	12	14	13	13	13
Bekasi UVI	14	16	16	14	11	10	10	11	13	15	14	13
Jakarta UVI	14	16	16	14	11	10	10	11	13	15	14	13
Medan UVI	13	15	15	15	14	12	12	13	14	14	13	12
Bandung UVI	15	16	16	15	12	11	11	12	14	15	15	14
Rantau	15	16	16	15	14	12	12	14	15	15	14	14